Netherlands Wood pellets country report 2009

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Development and promotion of a transparent European Pellets Market

Creation of a European real-time Pellets Atlas

Pellet market country report

NETHERLANDS


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Copyright Utrecht University

Copernicus Institute

Padualaan 5

3584 Utrecht, the Netherlands

April 2009

Prepared by Utrecht University

Martin Junginger

Richard Sikkema

Contact [email protected]

Tel. +31-30-2537 613

This report is available at the pellets@las website at www.pelletsatlas.info

The pellets@las project is supported by the European Commission under the EIEprogramme (EIE/06/020/SI2.448557). The sole responsibility for the content of thisreport lies with the authors. It does not necessarily reflect the opinion of the EuropeanCommunities. The European Commission is not responsible for any use that may bemade of the information contained therein.


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Country report the Netherlands

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TABLE OF CONTENTS

1. Summary ...........................................................................42. Introduction ......................................................................53. History of market development.......................................54. Pellet production ..............................................................7

5. Pellet trade and logistics .................................................86. Pellet consumption ........................................................107. Mixed biomass pellets ...................................................118. Legal framework & Policy..............................................139. Projections on future developments ............................1610. Summary and conclusions............................................19


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1. Summary

The Dutch pellet market is characterized as follows:

Only few wood pellet producers with limited production capacity: 130,000 tonnes

in total. One barrier for further growth of wood pellet production is the lack of rawmaterial, because most sawmill residues have a dedicated use in Belgian particleindustry or in Dutch extensive dairy sector.

A very small market for domestic heating, mainly hampered by lacking policysupport for residential pellet boilers, a nation-wide natural gas grid and advancednatural gas boilers, and lacking storage space for wood pellets at typical Dutchhouses

A large demand for wood pellets for co-firing in coal fired power plants. Woodpellet consumption has increased from less than 200,000 tonnes in 2002 to over900,000 tonnes in 2008. This demand is almost exclusively caused by the so-

called MEP feed-in premium, which was in place between 2003-2006, andprovided a subsidy of between 6-7 ct per kWh electricity produced from cleanwoody biomass.

The main barrier for further increase in wood pellet consumption is the uncertainfuture policy support. Based on the current long term grants until the period 2012-2015 (inherited from 2003-2006 governmental obligations), it is expected thatcurrent wood pellet consumption may remain more or less stable until 2012.


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2. Introduction

Wood pellet markets in Europe are very heterogeneous, and many are rapidlydeveloping. One of the aims of the Pellets@las project is to describe these marketsto provide accurate and up-to-date data.

The wood pellet market in Netherlands has a number of very specific characteristics,and the aim of this country report is to provide a clear and concise overview of theDutch wood (and to some extent MBP) market up until the end of 2008.

This report organizes as follows: Section 3 provides a short overview of the historicdevelopment of the wood pellet market in the Netherlands. Section 4, 5 and 6describe respectively the wood pellet production, trade and consumption. Section 7discusses the situation regarding mixed biomass pellets (MBP) in the Netherlands,

while section 8 sketches the legal framework and support policies for wood pelletsand MBPs. In section 9, future developments are highlighted, and section 10 finalizesthe report with a summary and conclusions.

3. History of market development

The use of wood pellets in the Netherlands only dates back about ten years. Dutchenergy companies began to co-fire biomass and coal in the early 1990s, but mainlywaste streams such as paper sludge and (demolition) wood were used. Powercompanies combusted specific fuel types, in particular demolition wood and sewagesludge, because there was a surplus of these fuels rather than because there was ademand for renewable energy, and the focus was on experimenting with direct andindirect co-firing of small amounts of biomass. In the late 1990s, the focus shiftedtowards larger amounts of biomass and permanent co-firing. After 2000, allproduction companies intensified their co-firing activities, the main reason being acovenant between the power producers and the Dutch Ministry of the Environment,signed in 2002, and beneficial policy support schemes for the production ofrenewable electricity from biomass (see also section 8). Due to these favorableeconomic support schemes, utilities started to look for additional biomass.

The Dutch forest industry is merely based on large timber imports (Germany,Scandinavian countries, Indonesia, West African countries), because Dutch forestsare relatively small (350,000 ha or about 8% of the countrys land surface). However,the feedstock potential for the production of wood pellets (sawdust or shavings) fromdomestic industry is rather limited. When regarding the tree species, residues (waste)from (re)sawing process of coniferous species (mostly spruce and pine) and whitedeciduous species (mostly poplar) are fully dedicated to other destinations. Suchdestinations are for example, the particleboard industry in Belgium and the extensiveDutch dairy sector (stable litter). Generally, sawdust from tropical wood species isbest available; because particle board industries cannot use (tropical) red woodresidues in their products and dairy sector is prohibiting these residues due to allergic

reactions of their livestock.


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So far, two wood pellet producers with a combined capacity of 130,000 tonnes arepresent in the Netherlands, but it is unlikely that this capacity will increase (see alsosection 4). Therefore, the Dutch utility sector started to explore possibilities whetherbiomass could be imported from e.g. Eastern Europe or North America. Thiscoincided with the rapidly increasing imports from Canada to Sweden, and soon the

Netherlands also started to import large quantities of wood pellets (see alsosection 3).

Within the Pellets@las project, three main markets have been defined within theEuropean pellet market (Sikkema et al 2009).

Non industrial bulk for heating, in this case an average volume of about fivetonnes, meeting specific quality standards1, is delivered to a district heating plant.Pellets are sold by traders to end consumers. If a producer sells directly to aconsumer, he is regarded as a trader, too.

Non industrial pellets in small bags (15 to 25 kg) for heating, with similarstandards as non industrial bulk. In this case study, small consumers buy smallbags at retailers shops and use them in small scale heaters at home. Theaverage annual volume sold is about 0.25 tonne.

Industrial bulk for electricity production at large scale consumers with an annualdemand higher than 3,000 tonnes and having less stringent quality standards,compared to the non industrial pellet volumes. The pellets are mainly transportedby wholesale merchants or international traders, operating between productionplants and large scale consumers.

In some countries, several of these markets co-exist. In the Netherlands, the thirdmarket type is clearly dominant, like illustrated in the next sections.

1 One of the following: CEN/TS 14961, -norm M 7135, DIN plus, DIN 51731, Pelletgold,Umweltzeichen 38 or SS 187.120


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4. Pellet production

The Netherlands has two pellet production plants, one located in the western part ofthe country one in the middle of the Netherlands (see Figure 1). Together they have a

production capacity of 130.000 tonnes, also this production capacity is typicallyutilized between 80-90% (see and Table 2). The quality of the produced pellets ismainly DIN 51731 based. The pellet producers trade the pellets themselves, butalso via about six other Dutch traders. About 53% of Dutch production is being usedfor power production and about 47% for heating (bags, bulk).

Table 1: Development of the pellets market over period 2005 until 2008 (in tonnes)

Year Total production capacity Total production Consumption

2008 130,000 120,000 913,500

2007 130,000 107,500 704,000

2006 130,000 110,000 484,000

2005 130,000 110,000 485,000

The biggest producer, Energy Pellets Moerdijk BV, produces wood pellets, a highquality fuel which is CO2- neutral, for using in Power stations and Heating systems.They have transport facilities to transport by vessel, train and truck. The other pellet

production plant, Plospan Bioenergy BV in Waardenburg, started in September 2005with the production of pellets, which substantially consist of (tropical) hardwood. Thispellet is especially suitable for small as well as medium sized automatic installations,which provide the fireplace automatically with pellets with the help from a transportaxel.

Table 2: Production of wood pellets 2008 based on the size of the pellets plants (in tonnes)

Size of pellets plants Productioncapacity 2008

Total production2008

Number ofpellets plants

2008

Utilization rate2008

[%]

small-scale

(< 30,000 tonnes/year)

0 0 0 0

medium-scale

(30,000 70,000tonnes/year)

30,000 20,000 1 67

large-scale

(> 70,000 tonnes/year)

100,000 100,000 1 100


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Both companies have their fleet of container trucks and trailers with special suctioninstallations collecting the sawdust and other feedstock like fresh wood fibers. It isalso possible to deliver containers and change them when they are full. This is doneon demand. The same trucks deliver the products to wholesalers and distributorsfrom where they go to the consumers. In both production locations there is an area

with a large storage capacity, so that a continuous supply is guaranteed.

Figure 1: Location of wood pellet plants in the Netherlands in 2008.

5. Pellet trade and logistics

The pellet market in the Netherlands is made up via individual enquiries at all pelletactors. Firstly the import and domestic supply of large scale consumers of industrialpellets (power production) is investigated. The export of industrial pellets is assumedto be zero. Secondly the market non industrial pellets for heating is derived from theinput from traders, divided into on domestic supply and export volumes. Thirdly, theimport of non industrial is extracted from the export and consumption minus thedomestic supply (production). Figure 2 shows the pellet balance of the Netherlandsover the period 2001 to 2008. Note that prior to 2005, no information is availableregarding import and export of wood pellets. Also, all data presented here should beconsidered as (sometimes rough) estimates, as no official statistics regarding pelletproduction, consumption and trade existed until the end of 2008. According toEurostat, from the 1st of January 2009, EU member states will record trade monthly

based statistics for a dedicated category of wood pellets.


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Regarding wood pellet logistics, wood pellets are handled almost exclusively in bulk.Typically, they are imported by large dry bulk carriers to harbors such as Rotterdamand Amsterdam, where they are transferred to smaller river barges, which transportthe pellets to the final consumer, large coal power plants.

Pellet flows the Netherlands 2001-2008

(source: Utrecht University)

0

200.000

400.000

600.000

800.000

1.000.000

1.200.000

2001 2002 2003 2004 2005 2006 2007 2008

Years

Tonnes

ofwoodpellets

Total production

Import

Export

Consumption

Figure 2: Wood pellet balance of the Netherlands


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6. Pellet consumption

The pellet consumption is largely based on industrial pellets for power production andjust for a small part on non industrial pellets for heating.

Dutch wood pellet market


0

100.000

200.000

300.000400.000

500.000

600.000

700.000

800.000

900.000

1.000.000

2005 2006 2007 2008

Year

tonnes

consumption

Bulk pellets

powerproduction

Bulk pellets heating

Pellets small bags heating

Figure 3: Consumption of wood pellets in the Netherlands - 2005 until 2008

Nowadays, more than 95% of all wood pellets consumed in the Netherlands are co-fired in large coal power plants. In other words, the market in the Netherland is alarge-scale one, and almost exclusively for electricity production. While the maximumtheoretical co-firing capacity is not yet reached, the market is quickly getting mature(see also section 3). In about 6 power production units, wood pellets are co-fired(between 1% and 20% of total input). The substitution happens only at co-fired powerplants, on average 2.8% of coal (in terms of electricity production) is substituted bywood pellets in 2008. The largest single consumer by far is the utility Essent, whichhas co-fired several hundred thousand tonnes of wood pellets annually at its Amercoal power plant. Furthermore, another large scale consumer has switched since the

1st

quarter of 2008 from waste wood to wood pellets. The power production wasabruptly halted several times due to problems with refining process of waste wood:the hammer mill collapsed several times per year and needed a lot of maintenance.

Use of wood pellets for domestic heating in small-scale boilers is rather uncommon inthe Netherlands, most likely due to the lack of specific support schemes, thepresence of a natural gas grid throughout the entire country and high-efficiencynatural gas boilers, and perhaps also limited storage space for wood pellets (typicalDutch dwellings do not have a cellar).


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Renewable electricity production


0,0%

1,0%

2,0%

3,0%

4,0%

5,0%

6,0%7,0%

8,0%

2007 2008

Year

ShareofDutchelectricity

use

Total RES

Cofiring all

Cofiring pellets

Figure 4: Renewable electricity production in the Netherlands 2007 until 2008

The production of electricity from renewable energy sources (RES) in theNetherlands has increased from 6.0 % of domestic electricity consumption in 2007 to7.5 % in 2008 (Figure 4). Main producers are onshore wind farms and co-firing ofbiomass. The Dutch government strives to realize 9% renewable electricity by theend of 2010 and 20% by the end of 2020. The large power production units co-firedabout 25% more biomass in 2008, compared to 2007. The co-firing mainly consists ofwood pellets. Other sources are agro residues, and animal manure. In 2005 and

2006 the renewable electricity production was even larger due to another subsidyprogram. The total electricity consumption in the Netherlands in 2008 was about119,000 GWh and the contribution of power production from wood pellets is about1,700 GWh (CBS Statline 2009).

7. Mixed biomass pellets

Utilization of wood pellets for residential heating is currently only marginally occurringin the Netherlands, probably due to the lack of subsidy programs and the presence ofhigh-efficiency natural gas boilers, limited storage space for wood pellets (typical

Dutch dwellings do not have a cellar). Utilization of MBP for medium-to-small-scaleheating is to our knowledge currently not occurring in the Netherlands.

If large-scale use of wood and MBP pellets for small-scale residential heating were tooccur in the near-by future, the emissions would be regulated under the Bees-B law2,which typically regulates all emission from small-scale industrial installations withthermal capacities lower than 20 MW. Finally, in the (for MBP unlikely) application insmall-scale residential wood boilers, the Netherlands Emission Guidelines for Air

2 [Bees-B] Besluit emissie-eisen stookinstallaties milieubeheer-B. Available at:

http://wetten.overheid.nl/BWBR0004833/geldigheidsdatum_18-02-2009


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would generally apply. A more detailed overview of all emission rules for biomass useis provided by SenterNovem3.

National MBP market

During 2006 & 2007, about 15,000 tonnes of soy husks in pelletized form werebought by large Dutch utilities for co-firing from the Dutch agro industry. Also about10,000 tonnes of other mixed biomass pellets were imported. During 2008, the MBPmarket was coined by the pilot use of coffee husk pellets, directly imported fromBrazil. The utility Essent expected to use 250.000 tonnes of these MBP by 2013,gradually replacing coal. However, due to competitive markets and shortage ofsupply, the use of MBP has been stopped for the time being in 2009.

Use of mixed biomass pellets by Dutch power plants(Source: Utrecht University)

0

2.000

4.000

6.000

8.000

10.000

12.000

14.000

16.000

2006 2007 2008

Year

tonsofinput Soja Husk

(byproduct Dutch agro industry)

Coffee Husk

(byproduct Dutch agro industry)

Other MBP (imported)

Figure 5: MBP market in the Netherlands 2006 until 2008

Factors hampering market development

The main factor is that prices of regular fossil fuels for power production, like coal andnatural gas, are more than competitive. While the initiative of Essent was supportedby Solidaridad (a Dutch NGO supporting fair trade of amongst others coffee), itturned out that the ash content of some MBP could be up to 14% and such highvalues are technically problematic for the co-firing process.

3

[SenterNovem] Toelichting luchtkwaliteit, available at:http://www.senternovem.nl/duurzameenergie/aan_de_slag/aan_de_slag_bioenergie/

vergunningverlening/vergunningverlening_biomassa/c16c08.asp


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8. Legal framework & Policy

This section is built up of subsidy schemes, sustainability criteria and legal frameworkfor wood pellets and mixed biomass pellets.

Subsidy schemes for wood and mixed biomass pellets

The main measure to stimulate the production of renewable electricity is the so-calledSDE scheme. It subsidizes the exploitation of new sustainable energy projects. Thismeans that the scheme subsidizes the production of renewable gas and electricity.SDE is not an investment subsidy; it is a feed-in premium subsidy scheme. In thecase of electricity from biomass, only a certain number of biomass types can be usedto obtain SDE support. The list of eligible fuels includes amongst others clean wood,wood wastes, agricultural residues and input of animal origin (e.g. manure). In total,

for 2009, a subsidy amount for electricity from biomass of 715 million is available(and additionally 195 million for the production of biogas through anaerobicdigestion). However, the use of wood pellets for large-scale co-firing is currentlynotsupported under the SDE scheme.

The large amounts of wood pellets co-fired in recent years are mainly a result of theprevious subsidy scheme, the so-called MEP system (Environmental quality of theelectricity production), a system of feed-in premiums, which was in operationbetween July 2003 and August 2006. Since July 2003, the MEP is guaranteed toproducers of electricity from renewable sources which feed in on the Dutch electricity

grid. The subsidy was financed by a levy on all connections to the electricity grid inthe Netherlands. The MEP-feed-in premiums apply for a number of renewable energytechnologies (e.g. onshore and offshore wind, hydro power, PV) and for variousbiomass options. For the biomass options, the height of the feed-in premium is rathercomplicated: it depends on four factors:

Capacity of the installation (e.g. larger or smaller than 50 MWe),

Type of biomass used (e.g. clean, woody biomass or bone meal),

Period when the electricity was produced (from July 2003 in periods of 6 months)and

Point in time when the first request for subsidy was received.Typically, for electricity produced from clean woody biomass (e.g. wood pellets) afeed in premium between 6 and 7 ct per kWh was awarded.

Co-firing capacity is still eligible for MEP support. In 2008 a record amount of woodpellets was imported to the Netherlands, but probably will not further increase. Thegovernment, however, has limited its long term support to a maximum of 10 years.Because most contracts were made for the full period of ten years, it is likely thatcurrent wood imports and co-firing levels can be maintained up until 2012. After2012, when first contracts from 2003 will be terminated, a starting decline in theconsumption of wood pellets is expected, unless new subsidy schemes are put inplace in the meantime.


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Given the large contribution of wood pellet co-firing to the overall Dutch renewableelectricity production, it is likely that a new instrument will be devised to continue theuse of wood pellets. However, as wood pellet co-firing requires very little investmentcosts, and depends largely on the costs of wood pellets and the cost of coal (the fuelto be substituted), it is questionable whether the SDE support system will be used tostimulate future wood pellet use. Alternatively, this could also be achieved by obligingpower companies to produce a minimum share of renewable electricity from biomass.It is expected, that over the course of 2009, more clarity on this issue will be providedby the Ministry of Economic Affairs.

Criteria for the sustainable biomass

In 2009, market parties, the Dutch government and NGOs have made a voluntaryagreement on how to define sustainably produced biomass. These formalizedcriteria are based on the sustainability criteria defined in 2007 by the Cramercommission. To be able to certify sustainably produced biomass, the Dutchnormalisation institute NEN has developed a NTA 8080 standard (in Dutch)4. It is theintention to utilize this NTA standard for granting SDE subsidies from 2010 onwards.However, because large-scale co-firing of wood pellets is currently excluded from theSDE, it is unclear how these sustainability criteria will affect the production and importof wood pellets to the Netherlands.

Legal framework for wood and mixed biomass pellets

Wood pellets and, to a lesser extent, mixed biomass pellets (MBP) are used in 2008for one single large-scale coal power plant (Amer centrale), owned by the UtilityEssent. Other coal-power plants also co-fire agricultural residues, such as wheathusks and palm kernel shells, but not in pelletized form. In general, these plants haveto meet the general local, national and international laws setting emission thresholdsfor coal-power plants. On a national level, this is regulated by the so-called Bees-A,setting emission thresholds for (amongst others) power plants with a thermal installedcapacity greater than 20 MW for emissions of SOx, NOx, fine dust particles etc.

5 Forexample, the emission threshold for plants with a capacity of more than 300 MW,commissioned after 1992, is 200 mg/m3 for SOx and NOx and 50 mg/m

3 for dust. The

Bees-A law is also valid for non-wooden biomass, which is explicitly included in thelaw. Next to the inclusion of residues from the food processing industries and thepulp & paper industries, biomass is defined as plant material derived fromagricultural or forestry activities. If wood pellets and mixed biomass pellets were tobe used in either large scale stand-alone plants or co-fired in waste incinerationplants, other relevant Dutch laws are the Netherlands Emission Guidelines for Air6

4See also: http://www2.nen.nl/nen/servlet/dispatcher.Dispatcher?id=BIBLIOGRAFISCHEGEGEVENS&contentID=2738935

[Bees-A] Besluit emissie-eisen stookinstallaties milieubeheer-A. Available at:http://wetten.overheid.nl/BWBR0004147/geldigheidsdatum_18-02-2009#Hoofdstuk26 [NER] Netherlands Emission Guidelines for Air, available at:http://www.infomil.nl/aspx/get.aspx?xdl=/views/infomil/xdl/page&ItmIdt=164452&SitIdt=111&VarIdt=82


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and the law on the combustion of waste7. Especially in the latter, also emissionthresholds are defined for contaminated metals (e.g. with heavy metals or halogens).

Next to the national laws, local municipalities have in special cases (e.g. when the

plant is located close to residential areas) the right to set more stringent emissionlevels for specific emission (e.g. dioxins, mercury). However, as levels of halogensand mercury are typically very low in mixed agricultural biomass, this is deemed ofless relevance in this frame.

7 [BVA] Afvalverbranding: Besluit verbranden afvalstoffen.http://www.infomil.nl/aspx/get.aspx?xdl=/views/infomil/xdl/page&ItmIdt=28786&SitIdt=111&VarIdt=82


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9. Projections on future developments

Projections are illustrated via market developments (section 9.1), a recently establishindex for pellet prices (9.2) and ongoing research (9.3).

Expected market developments

As the Netherlands have very limited domestic resources of raw material freelyavailable (see section 3), it is unlikely that any new significant pellet productioncapacity will be built in the coming years. Given the ambitious Dutch policies forrenewable energy and renewable electricity (20% renewable electricity production bythe end of 2020), it is very likely that also in the future, import of biomass will berequired to meet these targets. As argued however in section 8, it is unclear how andwhen additional policy measures will be implemented to achieve the required

increase in co-firing capacity.

Next to increasing the share of renewables in the Dutch electricity portfolio, securityof supply may also become an issue, although rather a minor one. Coal prices havefluctuated strongly in recent years, and as the amount of wood pellets that is co-firedcan be changed rapidly, wood pellets may become a strategic alternative in timesthat coal prices are (extremely) high. However, given the very large global coalreserves, a real shortage of coal is not expected in the next decades, and so thesecurity of supply aspect is much less important than e.g. in countries where woodpellets replace heating oil or natural gas.

Regarding the domestic heating market, it is unlikely that wood pellets will gainsignificant market shares in the near future. Dutch policy is focusing on otheralternatives, such as natural-gas fuelled micro-CHP installations, producing heat andelectricity in residential areas, utilization of heat pump, solar heating and heatstorage.

The Dutch ports of Rotterdam, Amsterdam, Flushing and Delfzijl/Eemshaven do havea clear interest to become bioenergy-hubs, a scenario which is not unlikely. With

increasing amounts of wood pellets being imported form North America (but possiblyalso from other continents), and raw material becoming scarce in North-West Europe,it is foreseen that e.g. the Rotterdam harbor could become a major hub where woodpellets are transferred from large ocean-going dry bulk carriers to smaller rivervessels and coasters.

Development of a price index for industrial wood pellets

A company called ENDEX established in October 2008 a price index for woodpellets. Traditionally, the ENDEX pricing panels produce price indices for Dutch

power, Belgian power and natural gas on a daily basis. These price indices havebecome benchmarks in the energy market and are used by energy companies and


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their customers to take their trading decisions. ENDEX is now expanding its pricingpanels with a pricing panel for the bio-energy product industrial wood pellets.

A recent survey among ENDEX members and active players in the bio-energy

markets has indicated a strong demand for standardized market price information forseveral bio-energy products, facilitated by an independent and secure platform. Inclose co-operation with market players active in these markets, ENDEX is eager tocontribute to the further development of the bio-energy market by introducing bio-energy price indices.

As from 20 November 2008, ENDEX publishes reference prices for Industrial WoodPellet products8. The published prices are obtained from a mix of producers, tradersand large scale consumers. It is an average price, based on all surveyed prices,divided by the amount of actors involved. A more detailed, weighted average (based

on volumes) is more difficult to obtain, because adding up all volumes fromproducers, traders and large scale consumers may lead to double counting.Generally, prices of industrial wood pellets are given in per tonne CIF ARA. Thisprice includes all costs, insurance and freight (CIF) until transshipping of pellets fromthe ocean ships (Panamax) into the storage depots (or smaller inland river vessels)of European biggest pellet harbors of Amsterdam, Rotterdam or Antwerp (ARA).

Currently, ENDEX publishes reference prices for the following contracts:

3 front Months Wood Pellet contracts

3 front Quarters Wood Pellet contracts 1 front Calendar Wood Pellet contracts

The reference prices for the Industrial Wood Pellets are updated weekly, everyThursday at approximately 17:00 hrs (CET). The pricing conditions for the pricingpanel members are laid down in a special contract between the pricing panelmembers (so-called pricing officers) and ENDEX.

Depending on market development and the level of liquidity of the (standardized) bio-energy products, ENDEX aims to introduce:

Tradable (standardized) bio-energy futures on the ENDEX Futures Exchange(e.g. Wood Pellet Futures)

OTC clearing service for bio-energy forwards (e.g. Wood Pellets Over TheCounter clearing service)

8 For product specifications, see www.endex.nl.


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Ongoing research on Torrefaction

The Dutch energy research centre of the Netherlands and various companies arestrongly interested and involved in the development of torrefied wood pellets. InNovember 2007, a consortium of three Dutch organizations (Econcern, the Energy

research Centre of the Netherlands (ECN) and Chemfo), has signed a memory ofunderstanding to build a new type of biomass plant, that will produce second-generation pellets. For these pellets, the feedstock will be torrefied, and processedinto torrefied pellets (BO2-pellets, as the consortium calls them), which is currentlyworking on the first commercial torrefaction plant.

As a second Dutch initiative, The Hague-based Topell has announced it will producetorrefied pellets, using a Torbed reactor system developed by Polow energysystems in The Netherlands.

Torrefaction is a thermal pre-treatment technology carried out at atmosphericpressure in the absence of oxygen. It occurs between 200-300oC where a solid,uniform product with a very low moisture content and a high calorific value isproduced. During the process, about 10% of the energy value of the original biomassis lost, at less than 75% of the original weight. Especially on long-distancetransportation chains, the additional investments and losses in energy during thepretreatment process may be (more than) recovered due to the higher energydensity, and subsequent lower transportation costs. For example, Topell claims thattypically, their pellets have an energy density of 18 - 20 GJ per m3 versus 10 - 11 GJper m3 for conventional wood pellets. In comparison (see below), (Uslu et al 2009)

estimate that torrefied pellets may have an energy density of 20.4-22.7 GJ per tonne,compared to 17-18 GJ per tonne for conventional pellets. It is considered a keytechnology to process a large variety of different feedstocks (such as wood chips andagricultural residues) into a high-energy density pellet. The current 1st generationwood pellets have a limited energy density, require indoor storage and need an extrapulverization step, separate from coal pulverization. Claims are that these limitationsare all solved for torrefied pellets, which are hydrophobic, can be stored outside, andmilled together with coal in standard hammer mills. General applications of torrefiedpellets will be the use in coal fired power plants and as a feedstock for gasification-based production of transportation fuels9. The application for heat production (e.g.residential heating) is less viable, due to the smaller distances valid within the chain

of conventional wood pellets for heating.

9 For more information, please see:

http://www.econcern.nl/index.php?option=com_content&task=view&id=200&Itemid=66

http://www.nom.nl/ng01/index.jsp?articleid=27653 (in Dutch)

http://www.topell.nl/index.htm

http://www.chem.uu.nl/nws/www/publica/Studentenrapporten/Studentenrapporten2005/I2005-27.pdf


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10. Summary and conclusions

The Dutch pellet market is characterized as follows:

Only few wood pellet producers with limited production capacity: 130,000 tonnesin total. One barrier for further growth of wood pellet production is the lack of rawmaterial, because most sawmill residues have a dedicated use in Belgium particleindustry or in Dutch extensive dairy sector.

A very small market for domestic heating, mainly hampered by lacking policysupport for residential pellet boilers, a nation-wide natural gas grid and advancednatural gas boilers, and lacking storage space for wood pellets at typical Dutchhouses

A large demand for wood pellets for co-firing in coal fired power plants. Woodpellet consumption has increased from less than 200,000 tonnes in 2002 to over900,000 tonnes in 2008. This demand is almost exclusively caused by the so-called MEP feed-in premium, which was in place between 2003-2006, andprovided a subsidy of between 6-7 ct-kWh electricity produced from clean woodybiomass.

The main barrier for further increase in wood pellet consumption is the uncertainfuture policy support. Based on the current long term grants until the period 2012-2015 (inherited from 2003-2006 governmental obligations), it is expected thatcurrent wood pellet consumption may remain more or less stable until 2012.

It can be concluded that the Dutch utilities have successfully managed to sourcelarge quantities of wood pellets for co-firing, contributing significantly to therenewable electricity targets of the Netherlands.

Regarding the future, policy makers in the Netherlands are aiming to secure thesustainable production of biomass, explicitly including solid biomass for electricityproduction, next to liquid biomass production for transport. To this end, a standardbased on the Dutch Cramer sustainability criteria is currently developed, which maybecome operational in 2010, and to which new subsidy schemes may be linked, i.e.consumers of wood pellets will have to prove that wood pellets have been produced

sustainably.

Another Dutch ambition for the future is to become a major hub for solid and liquidbioenergy trade. Already in 2008, more than a million tonnes of wood pellets havebeen traded through Dutch ports. To secure this ambition, further increasing trade,advanced pretreatment technologies and dedicated loading and unloading facilitiesare required. Torrefaction of wood pellets may be one technological solution toenable more energy-efficient long distant transport.

Documents

Netherlands Wood pellets country report 2009